Superchips ECU remap gives BMW 135i a total 360-hp
The upcoming BMW M version of the 1-Series (aka M1) is expected to make some 345-hp from an updated version of the N55 engine. However, while you wait for BMW to debut an M1 (if they ever do), a company by the name of Superchips is offering a performance boosting ECU remap for the 135i [...]
